Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dianne K Demers, PA

Physician Assistant in Worcester, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649221599

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Registry record

Entity type Individual (Type 1)

Name Dianne K Demers

Credential PA

Sex Female

Practice address 26 Queen St, Worcester, MA, 01610

Phone (508) 756-6324

Enumeration date May 15, 2006

Last updated in NPPES Apr 24, 2015

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1183 (MA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

Other identifiers

Identifier	Type	State	Issuer
42523	Other	-	CHILDRENS MEDICAL SECURIT
042472266	Other	-	THREE RIVERS
042472266	Other	-	TRICARE CHAMPUS
381306	Other	-	MVP HEALTH CARE
67868	Other	-	FALLON COMMUNITY HEALTH P
8301692	Other	-	EVERCARE
AP2101	Other	-	MEDICARE B
42523	Other	-	HEALTHY START

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Dianne Demers?

Dianne Demers is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-24.